 Product Name:
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Crosslinker RE
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Use:
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Trisphenylmethane-4,4’,4’’-triisocyanate in solvent :ethyl acetate.
Hardener RE is a crosslinking agent ,which is used for solvent based adhesives of polyurethanes ,polychloroprene , natural or synthetic rubber, to improve bonding strength and heat resistance
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Package:
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0.75 kg/ AL bottle , 20 bottles/Box
50 kgs /drum , 180 kgs/drum
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Store
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When stored in its sealed original containers at temperatures of 10-25 0C， Hardener RFE will remain stable for 6 months. During transportation and storage at low temperature，crystalline deposits may form. These re-dissolve at room temperature.
RFE are highly sensitive to moisture and react with water to form carbon dioxide and insoluble ureas. The containers must therefore be kept tightly sealed. Exposure to air and/or light intensifies discoloration but this has no effect on the processing properties in general.
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Performance:
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NCO content: 9.3 ± 0.2 %
Non-volatile content: 27 -29 %
(DIN EN ISO 3251)
Density at 20 0C (DIN 53 217/5) approx.1.0 g/cm3
Viscosity at 20 0C (DIN 53 015) approx. 3 mPa•s
Solvent: Ethyl acetate
Flash point (DIN 51 755): - 4 0C
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Usage:
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Hardener RE is crosslinking agent for solvent based polyurethane and polychloroprene rubber adhesive for automotive , synthetic rubber/metal bonding of roller , converting belt ,primer of rubber .
After adding of Hardener RE， two-component adhesive must be used within its pot life. At the end of the pot life， usually be several hours ， the adhesive becomes increasingly difficult to work and its viscosity increases rapidly. Fi¬nally， irreversible gelling occurs.
The following guide values can be used in determining the addition by weight. To crosslink 100 pbw adhesive:
S/B hydroxyl polyurethane adhesive
(solid content: 15-20%)
4 - 7 pbw Hardener RE
S/B chloroprene rubber adhesive
(solid content: 15-20%)
4 - 7 pbw Hardener RE
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Safty Notice:
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The product is highly flammable and the containers should therefore be kept away from ignition sources. Precautions against electrostatic pick-up should be taken. Any existing national regulations or recom¬mendations on explosion protection should be observed.
Skin and eye contact with the product as well as inhalation of the va¬pours should be avoided. We recommend the wearing of safety goggles and protective gloves.
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